3 * Purpose: Implementation of the root object
4 * Author: Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
5 * Created: January 1999
6 * Description: Root math object
8 * Copyright: 1999 Alejandro Aguilar Sierra
10 * You are free to use and modify this code under the terms of
11 * the GNU General Public Licence version 2 or later.
15 #include "math_rootinset.h"
16 #include "math_mathmlstream.h"
17 #include "frontends/Painter.h"
23 MathRootInset::MathRootInset()
28 InsetBase * MathRootInset::clone() const
30 return new MathRootInset(*this);
34 void MathRootInset::metrics(MetricsInfo & mi, Dimension & dim) const
36 MathNestInset::metrics(mi);
37 dim_.asc = max(cell(0).ascent() + 5, cell(1).ascent()) + 2;
38 dim_.des = max(cell(1).descent() + 5, cell(0).descent()) + 2;
39 dim_.wid = cell(0).width() + cell(1).width() + 10;
45 void MathRootInset::draw(PainterInfo & pi, int x, int y) const
47 int const w = cell(0).width();
49 cell(0).draw(pi, x, y - 5 - cell(0).descent());
51 cell(1).draw(pi, x + w + 8, y);
52 int const a = dim_.ascent();
53 int const d = dim_.descent();
56 xp[0] = x + dim_.width(); yp[0] = y - a + 1;
57 xp[1] = x + w + 4; yp[1] = y - a + 1;
58 xp[2] = x + w; yp[2] = y + d;
59 xp[3] = x + w - 2; yp[3] = y + (d - a)/2 + 2;
60 //xp[4] = x; yp[4] = y + (d - a)/2 + 2;
61 xp[4] = x + w - 5; yp[4] = y + (d - a)/2 + 4;
62 pi.pain.lines(xp, yp, 5, LColor::math);
63 drawMarkers(pi, x, y);
67 void MathRootInset::write(WriteStream & os) const
69 os << "\\sqrt[" << cell(0) << "]{" << cell(1) << '}';
73 void MathRootInset::normalize(NormalStream & os) const
75 os << "[root " << cell(0) << ' ' << cell(1) << ']';
79 bool MathRootInset::idxUpDown(idx_type & idx, pos_type & pos, bool up, int) const
81 bool target = !up; // up ? 0 : 1;
85 pos = target ? 0 : cell(0).size();
90 void MathRootInset::maple(MapleStream & os) const
92 os << '(' << cell(1) << ")^(1/(" << cell(0) <<"))";
96 void MathRootInset::octave(OctaveStream & os) const
98 os << "root(" << cell(1) << ',' << cell(0) << ')';
102 void MathRootInset::mathmlize(MathMLStream & os) const
104 os << MTag("mroot") << cell(1) << cell(0) << ETag("mroot");